A decadal analysis of drinking water quality and nitrate-related health risk assessment in groundwater sources: a case study of Poldasht County, Northwest Iran
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Key Points
The aim is to evaluate groundwater quality and health risks related to nitrate contamination in Poldasht County.
Collected groundwater samples from 17 wells over a decade.
Analyzed physicochemical parameters like pH, TDS, and nitrate.
Applied the groundwater quality index to evaluate overall water quality.
Calculated non-carcinogenic health risks per USEPA guidelines for different age groups.
Approximately 64.7% of samples were classified as 'acceptable'.
35.3% of samples fell into the 'moderate' quality range.
HQ values for all age groups were below 1.0, indicating no significant risk.
Children had higher HQ values, reflecting increased vulnerability due to higher water intake.
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Implication
Assessment evaluates groundwater quality and health risks from nitrate exposure in Poldasht County, suggesting monitoring needs.